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为了选择适合于密植的高产、稳产、多抗、优质、适应性广的小麦品种,在选种工作中,既要从小麦的株叶型着手进行选择,又要从它们的光合特性着手进行选择,使其适于密植并具有高光合产量,这样,才能达到丰产的目的。植物的干物质中90～95％来自光合作用,故高产品种必须具有优良的光合特性。优良光合特性表现在各个方面:叶面积增长快,保持最适叶面积时间长。高光能利用率,高光合生产率,高光合强度,低
In order to choose suitable wheat varieties with high yield, stable yield, multi-resistance, high quality and wide adaptability, it is necessary to select from the plant leaf types of wheat and choose their photosynthetic characteristics , Making it suitable for close planting and high photosynthetic yield, so as to achieve the purpose of high yield. 90-95% of the plant’s dry matter comes from photosynthesis, so high-yielding varieties must have excellent photosynthetic characteristics. Excellent photosynthetic performance in all aspects: rapid growth of leaf area, to maintain the optimum leaf area for a long time. High light energy efficiency, high photosynthetic productivity, high photosynthetic intensity, low